TDMA_DESC_RING_INTR_CONTROL
tdma_writel(priv, 1, TDMA_DESC_RING_INTR_CONTROL(index));
reg = tdma_readl(priv, TDMA_DESC_RING_INTR_CONTROL(ring->index));
tdma_writel(priv, reg, TDMA_DESC_RING_INTR_CONTROL(ring->index));
reg = tdma_readl(priv, TDMA_DESC_RING_INTR_CONTROL(0));